Re: Form cleaned_data

SOLVED: (I think)

Though I do not understand the how/why. From an example on
StackOverflow I tried changing the post method to this:

def post(self, request, *args, **kwargs):
form = self.form_class(request.POST)

if form.is_valid():
# <process form cleaned data>
paper = get_object_or_404(Paper,pk=kwargs['pk'])
reviewer =
Reviewer.objects.filter(user=self.request.user).filter(prj_name=paper.project)
f = form.save(commit=False)
f.reviewer = reviewer[0]
f.paper = paper
f.stage = paper.current_stage
f.save()
return HttpResponseRedirect('#')

return render(request, self.template_name, {'form': form})


and it works. Now to study more about saving the form to a new object
and then adding the additional data before saving with a commit. Very
confusing ...


On Sun, Nov 24, 2013 at 11:46 AM, Timothy W. Cook <tim@mlhim.org> wrote:
> I have an issue with save data from a form.
>
> The actual form has one required and two optional fields.
> The model has three additional fields that I want to assign based on
> the context, two of those are ForeignKey related.
>
> The post method in the view:
> def post(self, request, *args, **kwargs):
> form = self.form_class(request.POST)
>
> if form.is_valid():
> # <process form cleaned data>
> paper = get_object_or_404(Paper,pk=kwargs['pk'])
> reviewer =
> Reviewer.objects.filter(user=self.request.user).filter(prj_name=paper.project)
> form.cleaned_data['reviewer'] = reviewer[0]
> form.cleaned_data['paper'] = paper
> form.cleaned_data['stage'] = paper.current_stage
> print(form.cleaned_data)
> form.save()
> return HttpResponseRedirect('#')
> return render(request, self.template_name, {'form': form})
>
> The form:
> class ReviewTitleCreateForm(ModelForm):
> class Meta:
> model = Review
> fields = ['include','exclusion_choice','exclusion_text',]
>
>
> The model:
> class Review(models.Model):
> """
> A review at a specific stage of one paper.
> """
> INCLUDE_CHOICES = [(True,'Include'),(False,'Exclude')]
> STAGES = [('Selection by Title','Selection by Title'),('Selection
> by Abstract','Selection by Abstract'),
> ('Selection by Full Text','Selection by Full Text')]
>
> reviewer = models.ForeignKey(Reviewer, verbose_name=_('Reviewer'),
> related_name="%(app_label)s_%(class)s_related", null=False,
> blank=False, help_text=_("The reviewer of this paper, at this
> stage."))
> paper = models.ForeignKey(Paper, verbose_name=_('Paper'),
> related_name="%(app_label)s_%(class)s_related", null=False,
> blank=False, help_text=_("The reviewed paper."))
> review_stage = models.CharField("Review Stage",max_length=30,
> choices=STAGES, help_text="The stage for review of this paper.")
> include = models.NullBooleanField("Choice",
> choices=INCLUDE_CHOICES, default=True, null=False, blank=False,
> help_text="Select Include or Exclude for this stage of review.")
> exclusion_choice = models.ForeignKey(Exclusion, null=True,
> blank=True, related_name="%(app_label)s_%(class)s_related")
> exclusion_text = models.TextField(null=True, blank=True)
>
>
> When I output the cleaned_data from the print at the bottom of the
> post method (see above), I get this:
> {'reviewer': <Reviewer: Tim Cook>, 'include': True, 'paper': <Paper:
> Assessing the quality of clinical data in a computer-based record for
> calculating the pneumonia severity index.>, 'exclusion_text': '',
> 'stage': 'Selection by Title', 'exclusion_choice': None}
>
>
> Which looks correct, to me. However I am getting an error as if there
> is no Reviewer assigned:
> IntegrityError at /papers/review_title/3
> null value in column "reviewer_id" violates not-null constraint
> Request Method:POST
>
> Any ideas?
>
> Thanks,
> Tim
>
>
>
>
>
>
>
>
>
> --
> MLHIM VIP Signup: http://goo.gl/22B0U
> ============================================
> Timothy Cook, MSc +55 21 94711995
> MLHIM http://www.mlhim.org
> Like Us on FB: https://www.facebook.com/mlhim2
> Circle us on G+: http://goo.gl/44EV5
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> LinkedIn Profile:http://www.linkedin.com/in/timothywaynecook



--
MLHIM VIP Signup: http://goo.gl/22B0U
============================================
Timothy Cook, MSc +55 21 94711995
MLHIM http://www.mlhim.org
Like Us on FB: https://www.facebook.com/mlhim2
Circle us on G+: http://goo.gl/44EV5
Google Scholar: http://goo.gl/MMZ1o
LinkedIn Profile:http://www.linkedin.com/in/timothywaynecook

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